| 摘要 |
PROBLEM TO BE SOLVED: To reduce the labor in replacing the grinding water and cleaning a tank and to facilitate the maintenance works. SOLUTION: A grinding water tank device has the tank to store the grinding water used in processing the peripheral edges of lenses for glasses, in which the grinding water in the tank is circulated to be reused, wherein the arrangement includes an air filter installed in the intra-tank space over the surface of the grinding water and a suction means to suck the bubble generated in the tank through the air filter. COPYRIGHT: (C)2004,JPO
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